400MXG330MEFCSN22X55

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Aluminum Electrolytic Capacitors are widely used due to their high capacitance, high rate of self-discharge and low cost. Among them, 400MXG330MEFCSN22X55 is one of the most popular models. This article will discuss its application field and working principle.

Application Field

The 400MXG330MEFCSN22X55 is widely used in high frequency and high current applications. It is specially designed for applications where large capacitance is required in a small case, such as switching power supply, AC/DC converters, Uninterruptible Power Supplies (UPS), telecom power supplies, and industrial frequency converters, and so on. Its excellent tolerance and high ripple current capability make it suitable for high frequency or high current circuits such as microprocessors and motherboards, high-voltage/high-power circuits.

Working Principle

The 400MXG330MEFCSN22X55 is made up of an anodic aluminum foil, a separator, and a cathode foil. The anodic aluminum foil is made of an anodized aluminum tube, a collector foil, and an anode foil attached to the anodic aluminum tube. The collector foil focuses current density by distributing current and voltage equally across the surface of the anodic aluminum foil, improving the reliability of the capacitor and reducing the frequency of self-discharge. The separator is placed between the anodic aluminum tube and the cathode foil, which is made of a composite electrolyte material. Electrons flow between the anode and the cathode while the electrolyte supplies ions to the anode and the cathode forming an electric double layer cause by the phenomenon of electric polarization.

The double-layer capacitance is related to the thickness of the separator, which affects the capacitance. Under the action of the external current, the anode and cathode foils generate a certain amount of self-heat, releasing thermal energy and managing heat. In addition, the anodic aluminum foil is also treated with self-healing and temperature compensation. The 400MXG330MEFCSN22X55 has different kinds of shells: all-stainless, all-titanium, or all-carbon fiber, which can work in various temperatures.

The 400MXG330MEFCSN22X55 also has an excellent life which is usually measured based on leakage current and the number of hours the capacitor is expected to survive before the start of conductive leakage. The self-discharge rate is also important factor for this model. According to the data provided by the manufacturer, the self-discharge rate of the 400MXG330MEFCSN22X55 can reach 0.7% within 1000 hours.

Conclusion

The 400MXG330MEFCSN22X55 Aluminum Electrolytic Capacitor is an ideal choice for high frequency and high current applications due to its high capacitance, temperature compensation, and low self-discharge rate. Moreover, the different types of shells provide protection and make it suitable for a wide range of applications.

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